Reva an iso:9001 certified company have introduced helical reduction gearboxes of different types to suit specific applications. The centre distances, ratios, dimensions correspond to r-20 and r-40 series. The weight/power ratio is optimised because of the use of case hardened steels of high strength. Bearings designed for life time are fitted on integral shaft pinions. Hardened and profile ground helical gears run noiselessly in vibration-free steel fabricated/graded cast iron gearbox. Computer aided design based on buckingham method which results in compact and robust gearboxes with a factor of safety of over 1.5 both in wear and strength for gears and pinions. High efficiencies of 99% for single reduction, 98% for double reduction and 97% for triple reduction with 96% for quadruple reduction gears can be obtained.
